Opitz-Kaveggia syndrome
FG syndrome-1

FG syndrome (FGS; also known as Opitz-Kaveggia syndrome) is a rare genetic syndrome linked to the X chromosome and causing physical anomalies and developmental delays.

In the differential diagnosis of LFS, another disorder that exhibits some features and symptoms of LFS and is also associated with a missense mutation of MED12 is Opitz-Kaveggia syndrome (FGS).